1. has just performed
2. has prepared his costume yet
3 have they bought flowers yet?
4. Have they invited people to the concert yet?
5. Has just finished
6. Has already brought
7. Haven’t decided ... yet.
Объяснение:
1. has just performed
2. has prepared his costume yet
3 have they bought flowers yet?
4. Have they invited people to the concert yet?
5. Has just finished
6. Has already brought
7. Haven’t decided ... yet.
Объяснение: